You bought in October 2023. You needed to move, rates were what they were, and you signed for 7.5%. For 31 months you've been watching the weekly Freddie Mac number like a stock ticker. This week it's still 6.51%. The same as last week. And you're sitting there asking the same question you've been asking since the rate fell below 7%: is now the time?

The answer isn't "rates need to drop more." The answer is a number — a specific number of months. And it's calculable right now, with the data you already have.

The 30-year fixed-rate mortgage averaged 6.51% for the week ending May 22, 2026, according to Freddie Mac's Primary Mortgage Market Survey — a second consecutive week at that level, and down from the 6.75% spike in mid-May driven by US-Iran war inflation fears. A year ago, the same rate averaged 6.86%. The Fed remains on hold, with markets pricing no cuts in 2026.

That context matters. But the rate headline is less important than what it means for your specific loan. Here's how to run the math.

The one calculation that answers everything

Refinancing has exactly one variable that determines whether it makes sense: how long until the savings pay back the closing costs. Everything else — the rate, the lender, the term — feeds into that single number.

The formula is:
Closing costs ÷ monthly savings = months to break even

That's it. If you'll be in the house longer than the break-even point, refinancing puts money in your pocket. If you won't, it costs you money even though your monthly payment drops.

Here's what that looks like for someone who bought a $437,500 home in 2023 with 20% down — a $350,000 loan at 7.5% refinancing to today's 6.51%:

If you plan to stay in that house past 2028, you are leaving $2,796 per year on the table by not refinancing. So if you're at 7.5% and planning to stay, the math is already pointing at the answer: get serious about talking to a lender this week.

The full break-even table at 6.51%

The savings — and therefore the break-even — vary significantly depending on your original rate. Here are the verified numbers for a $350,000 loan refinancing to 6.51%, at two common closing cost scenarios. All figures are principal and interest only; property tax and insurance payments don't change with a refi.

Original rate Monthly savings Break-even @ $6k Break-even @ $8k
8.00% $354/mo 17 months 23 months
7.50% $233/mo 26 months 34 months
7.00% $114/mo 53 months 70 months
6.75% $56/mo 108 months 144 months

P&I calculations based on $350,000 30-year fixed loan. Monthly payment formula: M = P[r(1+r)^360]/[(1+r)^360−1]. Source: PropertyPundit calculations, May 2026.

The takeaway is blunt: if your rate is 7.5% or higher, this is a clear mathematical case for refinancing if you're staying. If you're at 7.0%, it's worth doing if your plans are long-term — but $8,000 in closing costs on $114/month savings is almost six years to break even, which is a commitment. At 6.75%, a standard refinance to 6.51% is barely worth the paperwork.

Closing costs — what you're actually paying and how to cut them

Refinance closing costs on a $350,000–$450,000 loan typically run $4,500 to $9,000, covering origination fees ($1,500–$3,500), title insurance ($800–$1,500), appraisal ($500–$800), and government recording fees. Some lenders — particularly credit unions and online lenders — are more aggressive on origination fees. Getting three quotes before locking is not optional; on a $6,000 savings opportunity, a $1,500 fee difference changes your break-even by 6 to 13 months (Rocket Mortgage, Lower.com, 2026).

One option most homeowners don't consider: a no-closing-cost refinance. The lender absorbs your upfront costs in exchange for a rate that's typically 0.125% to 0.25% higher. On a 7.5% loan, a no-cost refi to 6.75% (instead of 6.51%) would save $177/month instead of $233 — but with zero out-of-pocket cost. That means you start benefiting from day one.

Here's where it gets interesting: a no-cost refi at 6.75% actually beats a standard refi at 6.51% if you sell or refinance again within about 9 years. The math:

The no-cost option stays ahead until about month 107 — nearly 9 years out. If you're a realistic mover within that window, no-closing-cost wins. So for homeowners who bought at 7.5% and plan to be in the house 5–7 years before upgrading, a no-closing-cost refi at 6.75% beats the standard option every time. Ask your lender specifically for this structure.

Why the "1% rule" is outdated and what to use instead

You've probably heard the old rule: only refinance if you can drop your rate by at least 1 percentage point. That rule was invented when loan balances were smaller and closing costs were a larger percentage of the savings. On a $350,000 loan today, a 1-point drop saves $354/month — significant. But on a $600,000 loan, even a 0.5-point drop saves $304/month. Break-even at $7,000 closing costs: 23 months. The 1% rule would say don't bother. The math says otherwise.

The right question is never "how much did the rate drop?" It's always "what is my break-even in months, and do I plan to stay longer than that?" A 0.25-point drop on a $700,000 loan can still justify a refinance if your closing costs are low and your plans are long-term. Run your specific numbers, not a general rule.

The cost of waiting — and when waiting actually makes sense

Rate speculation is a genuine risk to people's finances. Here's the reality: if you're at 7.5% and waiting for rates to drop to 6.0% before refinancing, every month you wait costs you $233 in extra interest compared to refinancing at 6.51% today. Wait 12 more months and you've paid $2,796 in extra P&I that you can never recover.

Could rates fall to 6.0%? Yes. The Fed could cut in early 2027 if inflation cools. But the consensus as of May 2026 is no cuts this year, and every percentage-point drop in the fed funds rate doesn't translate directly to a 1-point drop in mortgage rates — 10-year Treasury yields and inflation expectations govern mortgage pricing more than the overnight rate (Freddie Mac, May 2026). Markets already partially price in expected future cuts, which is why mortgage rates haven't moved as much as some homeowners expect from rate-cut speculation.

The scenario where waiting makes clear sense: you're planning to sell within 18 months. In that case, the closing costs on any refi option are probably not recoverable regardless of which structure you choose. Keep your current loan and focus your energy elsewhere.

The specific calculation for every scenario

To run your own break-even: find your current P&I payment (it's on your mortgage statement). Get a refinance quote from two or three lenders and note both the new rate and the total closing costs. Subtract the new P&I from your current P&I — that's your monthly savings. Divide closing costs by monthly savings. The result is your break-even in months.

If that number is under 30 and you're staying in the house more than 3 years, you have a clear case. If it's over 60, you need a good reason to act. If it's between 30 and 60, the decision hinges on your specific timeline and whether a no-closing-cost structure changes the math.

The math points toward one conclusion for anyone at 7.5% or above: if you're staying past 2028, refinancing at 6.51% is financially rational. Most people who run these numbers end up calling a lender within the week. The ones who keep waiting are usually waiting for a feeling of certainty that never quite arrives — while their mortgage statement collects the cost of that hesitation every month.